Weather on August 31
Knoxville, TN
55 Years of Data
Avg High
86°F
Avg Low
65°F
Warmest
2016
83°F avg
Coldest
1986
64°F avg
About This Date
August 31st in Knoxville, TN typically brings warm summer weather, with average highs around 86°F and lows near 65°F. Over 55 years of records, the warmest August 31st was in 2016 (83°F average), while the coldest was 1986 (64°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 35% of August 31st dates historically, with the wettest August 31st recording 5.38" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for August 31st in Knoxville, TN? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 53° | 70° | — | — |
| 2024 | 96° | 66° | 81° | — | — |
| 2023 | 84° | 70° | 77° | — | — |
| 2022 | 89° | 70° | 79° | — | — |
| 2021 | 89° | 70° | 79° | 3.12" | — |
| 2020 | 88° | 67° | 77° | 5.38" | — |
| 2019 | 88° | 57° | 72° | — | — |
| 2018 | 87° | 68° | 78° | 1.63" | — |
| 2017 | 83° | 62° | 72° | 0.53" | — |
| 2016warmest | 96° | 69° | 83° | — | — |
| 2015 | 86° | 66° | 76° | — | — |
| 2014 | 91° | 66° | 79° | 2.34" | — |
| 2013 | 90° | 70° | 80° | — | — |
| 2012 | 86° | 70° | 78° | — | — |
| 2011 | 91° | 63° | 77° | — | — |
| 2010 | 91° | 61° | 76° | — | — |
| 2009 | 81° | 60° | 70° | — | — |
| 2008 | 90° | 64° | 77° | — | — |
| 2007 | 80° | 69° | 75° | 0.41" | — |
| 2006 | 88° | 71° | 79° | 1.63" | — |
| 2005 | 86° | 69° | 78° | 0.2" | — |
| 2004 | 83° | 65° | 74° | 0.03" | — |
| 2003 | 88° | 70° | 79° | — | — |
| 2002 | 88° | 65° | 76° | — | — |
| 2001 | 80° | 66° | 73° | 0.71" | — |
| 2000 | 89° | 64° | 77° | — | — |
| 1999 | 84° | 56° | 70° | — | — |
| 1998 | 88° | 62° | 75° | — | — |
| 1997 | 88° | 60° | 74° | — | — |
| 1996 | 87° | 63° | 75° | 0.15" | — |
| 1995 | 96° | 68° | 82° | — | — |
| 1994 | 86° | 63° | 74° | — | — |
| 1993 | 94° | 66° | 80° | — | — |
| 1992 | 83° | 51° | 67° | — | — |
| 1991 | 86° | 66° | 76° | — | — |
| 1990 | 85° | 65° | 75° | — | — |
| 1989 | 83° | 68° | 75° | 0.15" | — |
| 1988 | 72° | 62° | 67° | — | — |
| 1987 | 80° | 62° | 71° | — | — |
| 1986coldest | 75° | 53° | 64° | — | — |
| 1985 | 85° | 60° | 72° | 0.94" | — |
| 1984 | 82° | 66° | 74° | 0.25" | — |
| 1983 | 88° | 64° | 76° | 1.09" | — |
| 1982 | 76° | 68° | 72° | — | — |
| 1981 | 80° | 68° | 74° | — | — |
| 1980 | 85° | 67° | 76° | — | — |
| 1979 | 86° | 65° | 75° | 0.3" | — |
| 1978 | 88° | 73° | 80° | — | — |
| 1977 | 90° | 71° | 80° | — | — |
| 1976 | 79° | 58° | 68° | — | — |
| 1975 | 87° | 73° | 80° | 0.08" | — |
| 1974 | 80° | 68° | 74° | 1.19" | — |
| 1973 | 91° | 67° | 79° | 0.2" | — |
| 1972 | 87° | 66° | 77° | — | — |
| 1971 | 87° | 64° | 76° | — | — |
55 years of data from KNOXVILLE UNIV OF TENN